package com.ruoyi.web.controller.monitor;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Properties;

import com.ruoyi.common.core.controller.BaseController;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisCallback;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.security.access.prepost.PreAuthorize;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import com.ruoyi.common.core.domain.AjaxResult;
import com.ruoyi.common.utils.StringUtils;
import reactor.core.publisher.Mono;

/**
 * 缓存监控
 *
 * @author ruoyi
 */
@RestController
@RequestMapping("/monitor/cache")
public class CacheController extends BaseController {
	@Autowired
	private RedisTemplate<String, String> redisTemplate;

	@PreAuthorize("@ss.hasPermi('monitor:cache:list')")
	@GetMapping()
	public Mono<AjaxResult> getInfo() {
		return startMono(() -> {

			Properties info = (Properties) redisTemplate.execute((RedisCallback<Object>) connection -> connection.info());
			Properties commandStats = (Properties) redisTemplate.execute(
				(RedisCallback<Object>) connection -> connection.info("commandstats"));
			Object dbSize = redisTemplate.execute((RedisCallback<Object>) connection -> connection.dbSize());

			Map<String, Object> result = new HashMap<>(3);
			result.put("info", info);
			result.put("dbSize", dbSize);

			List<Map<String, String>> pieList = new ArrayList<>();
			commandStats.stringPropertyNames().forEach(key -> {
				Map<String, String> data = new HashMap<>(2);
				String property = commandStats.getProperty(key);
				data.put("name", StringUtils.removeStart(key, "cmdstat_"));
				data.put("value", StringUtils.substringBetween(property, "calls=", ",usec"));
				pieList.add(data);
			});
			result.put("commandStats", pieList);
			return AjaxResult.successMono(result);
		});
	}
}
